Results 221 to 230 of about 300,905 (253)

Mixed-dimensional fluid-structure interaction simulations reveal key mechanisms of cerebrospinal fluid dynamics in the spinal canal. [PDF]

Fluids Barriers CNS
Putluru DR, Tepole AB, Gomez H.
europepmc   +1 more source

An unprecedented view of ocean currents from geostationary satellites

Lenain L, Sriniva K, Barkan R, Pizzo N.
europepmc   +1 more source

Pushing Down the Limits of the Radial Velocity Technique

, 2008
We present results from the first three years of operations of the HARPS spectrograph installed on the ESO-3.6m telescope at La Silla Observatory, Chile. This instrument, primarily built to detect extrasolar planetary systems, has demonstrated a long-term accuracy below the 1 m s-1 level, exploring a new regime in RV precision and discovering several ...
C. Lovis, M. Mayor, F. Pepe, D. Queloz, S. Udry   +4 more
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The radial velocity estimation based on digital spotlight technique

2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2015
For synthetic aperture radar(SAR) imaging of ship targets, it's difficult to generate high quality images because their motion characteristics are blind in most cases. Aiming at this problem, this paper presents a processing scheme for estimating the radial velocity based on the digital spotlight processing.
Tianshun Xiang, Yong Li, Li Liu, Huajun Duan   +3 more
openaire   +1 more source

Stellar Radial Velocities of High Precision: Techniques and Results

International Astronomical Union Colloquium, 1984
AbstractRelative radial velocities can now be determined with internal errors as small as ~ 10 m s−l. A variety of techniques for achieving this level of precision are either presently running, or will soon be on-line. These could be used on several astronomical frontiers; the most demanding application is the search for extra-solar planetary systems ...
Bruce Campbell, G.A.H. Walker
openaire   +1 more source

Noise Sources in Photometry and Radial Velocities

, 2017
The quest for Earth-like, extrasolar planets (exoplanets), especially those located inside the habitable zone of their host stars, requires techniques sensitive enough to detect the faint signals produced by those planets.
M. Oshagh
semanticscholar   +1 more source

Radial artery pulse wave velocity: a new characterization technique and the instabilities associated with the respiratory phase and breath-holding

Physiological Measurement, 2023
Abstract Objective. Pulse wave velocity (PWV) is a key diagnostic parameter of the cardiovascular system’s state. However, approaches aimed at PWV characterization often suffer from inevitable drawbacks. Statistical results demonstrating how closely PWV in the radial artery (RA) and the respiration phase correlate, as ...
Boris G. Vaǐner
openalex   +3 more sources